Home / 28,501.84-39,332.67-15,581.38

Finding the Fourth Proportional to 28,501.84, 39,332.67 and 15,581.38

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Solution

The fourth proportional to 28,501.84, 39,332.67 and 15,581.38 is: 21,502.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.84 : 39,332.67 = 15,581.38 : x
  2. Step 2: Convert to fraction form
    28,501.84/39,332.67 = 15,581.38/x
  3. Step 3: Cross multiply
    28,501.84x = 39,332.67 × 15,581.38
  4. Step 4: Simplify right side
    28,501.84x = 612,857,277.68
  5. Step 5: Solve for x
    x = 612,857,277.68/28,501.84
  6. Step 6: Final answer
    x = 21,502.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.